Quick Answer: Which Motor Is Used For Centrifugal Pump?

What are the different types of centrifugal pumps?

There are several types of centrifugal pumps that are useful for transferring fuel and other types of liquid, including radial and axial centrifugal pumps.

Radial centrifugal pumps facilitate a flow that is sped up in an outward motion via a pump impeller..

Which pump is more efficient?

In general, a reciprocating pump is more efficient than a centrifugal pump. Reciprocating machines are generally applied on low-flow/high-head service. Centrifugal pumps can have efficiencies as low as 40 percent on low-flow/high-head service.

What are the three types of pumps?

Pumps can be classified by their method of displacement into positive-displacement pumps, impulse pumps, velocity pumps, gravity pumps, steam pumps and valveless pumps. There are three basic types of pumps: positive-displacement, centrifugal and axial-flow pumps.

What are 3 types of hydraulic pumps?

There are typically three types of hydraulic pump constructions found in mobile hydraulic applications. These include gear, piston, and vane; however, there are also clutch pumps, dump pumps, and pumps for refuse vehicles such as dry valve pumps and Muncie Power Products’ Live PakTM.

Why the centrifugal pump is the most common fire pump?

Centrifugal pumps are the most popular fire pumps and are classified as nonpositive-displacement pumps because they do not pump a definite amount of water with each revolution. Rather, this type of pump imparts velocity to the water and converts it to pressure within the pump itself.

What are the main parts of centrifugal pump?

Some of the most common components found in centrifugal pumps are:Pump main housing.Impeller.Impeller seal.Impeller bearings.Motor.Coupling.Shaft-drive.Shaft seal.More items…

What are centrifugal pumps used for?

Centrifugal pumps are commonly used for pumping water, solvents, organics, oils, acids, bases and any ‘thin’ liquids in both industrial, agricultural and domestic applications. In fact, there is a design of centrifugal pump suitable for virtually any application involving low viscosity fluids.

What will happen when we increase the RPM of a centrifugal pump?

Pump efficiency also increases with pump rotational speed, especially high speeds. The increase is not as pronounced at 3,600 rpm and below. Specific speed also affects head-capacity curve shape. Low specific speeds (500 to 1,500) produce flat curves.

How can I improve my pump performance?

4. Effect of specific speed4.1. Clearance. Good wear ring with proper clearance improves pump reliability and reduce energy consumption. … 4.2. Change in surface roughness. … 4.3. Change in flow path size. … 4.4. Run one pump instead of two.

What are the advantages of centrifugal pump?

The biggest advantage of centrifugal pumps is their aforementioned simplicity. They don’t require any valves, or many moving parts. This makes them easy to produce with many different materials. It also allows them to move at high speeds with minimal maintenance.

When would you use a centrifugal pump?

When to Use Centrifugal and Positive Displacement Pumps It is best to use a centrifugal pump to handle a large volume of low viscosity fluid in a low pressure environment. The centrifugal pump works best when it is transferring water, however it can also handle the transfer of low viscosity chemicals and fuels.

Which motor is suitable for centrifugal pumps?

Most pump motors are supplied with a 1.15 service factor and, in an ideal situation, a 10HP model can be loaded to 11.5HP. Standard single phase motors are designed to operate on 230VAC while three phase models are usually wound for both 230 and 460VAC.

How do I choose a pump motor?

The power required to drive the pump at the rated design condition should always be less than the nameplate horsepower rating of the motor. So if the pump will require 4.5 HP at the design condition, at a minimum, the motor should be sized for 5 HP – the next nominal size above 4.5 HP.

Which motor is used in pumps?

induction motorThe motor used to drive the pump is typically a three phase, squirrel cage induction motor, with a nameplate power rating in the range 7.5 kW to 560 kW (at 60 Hz).

What is the working principle of centrifugal pump?

A Pump is generally used to induce flow or raise the pressure of a liquid. Centrifugal pumps are a category of Dynamic pumps. The working principle of centrifugal pumps involves imparting energy to the liquid by means of a centrifugal force developed by the rotation of an impeller that has several blades or vanes.

How do you calculate the power of a pump motor?

The motor power is the power consumed by the pump motor to turn the pump shaft. The motor power is the sum of the shaft power and power loss due to inefficiencies in converting electric energy into kinetic energy. Motor power may be calculated as the shaft power divided by the motor efficiency.

What is 367 in pump efficiency?

The power required at the shaft (motor output) can be calculated from the formula: (Q x H x Specific Gravity) / (367 x pump efficiency), where Q = flow [m3/h] and H = head [m]) (note: With fluids other than water, the fluid’s specific gravity affects the power).

How do you build a pump capacity?

The steps to follow to select a centrifugal pump are:Determine the flow rate. To size and select a centrifugal pump, first determine the flow rate. … Determine the static head. … Determine the friction head. … Calculate the total head. … Select the pump.